Four-edge-tin-folding machine



(No Model.) 2 Sheets-811Mb 1.

J. W. & H. EAGER. FOUR EDGBTIN FOLDING MACHINE.

Patented Oct. 27, 1885.

EFFII Wfineases- (No Model.) i I J. W. 8v H. EAGER. FOUR EDGE TINFOLDING MACHINE.

2 Sheets-Sheet 2..

No. 329,149. Patented 0613. 27, 1885.

6 1, a J @P fine as ll rrEn STATES PATENT Orrrcn.

JAMES WV. EAGER AND HENRY EAGER, OF SYRACUSE, NEWV YORK.

FOUR-EDGE-TlN-FOLDING MACHINE.

SPECIFICATION forming part of Letters Patent No. 329,149, dated October27, 1885.

Application filed March 11, 1885. Sciial No. 158,470. (No model.)

2" 0 all whom it may concern.-

Be it known that we, JAMES W. EAGER and HENRY EAGER, citizens of theUnited States, residing at Syracuse, in the county of Onondaga and theState of New York, have invented a new and useful Four-Edge-Tin-FoldingMachine, for folding tin for flat-seam tin roofing, of which thefollowing is a specification.

Our invention consists in a combination of folders or wings adjusted toswing at the four beveled edges of two plates or clamps, over which theedges of tin are formed or bent, and so connected by means of levers andmitergears so arranged that the movement of one lever by the hand orfoot moves or swings the four folders or wings each in its properdirection and all simultaneously.

Referring to the accompanying drawings, Figure 1 represents a plan ofthe machine; Fig. 2, a side elevation and section taken on the line a:a: of Fig. 1. Figs. 3 and 4 show sections taken on line 00 m of Fig. 1,showing mechanism consisting of cams, levers, and releasing-plate. Fig.3 shows the plates or clamps open preparatory to inserting the flatsheet of tin to be operated on or bent. Fig. 4 shows the plates orclamps closed and in position for folding or bending the edges of thetin. Fig. 5 represents a detached View of the universal bearing, morefully described hereinafter. Fig. 8 represents the sheet of tin beforebeing operated on; and Figs. 6 and 7, the sheet of tin after the edgesare folded or bent, Fig. 7 being shown in perspective.

Similar letters refer to similar parts in the several views.

In the operation the upper plate or clamp, A, is raised by movement ofthe lever B in the direction of the arrow, as shown in Fig. 3, the leverB being connected to or a part of the cam O, which swings onapivotalpoint, a, which is supported over the plate A in the arm F, theextremities of which are rigidly attached to the lower plate, E. Theplate or clamp A, being attached by the slotted connection b to arm 6 ofcam O, is raised by the I pin f during the movement of the lever B inthe direction of the arrow shown in Fig. 3. The releasing-plate D ismoved diagonally under plate A and from the edges g and h of plate Ethrough the connection a, which is attached to the cam O andupwardlyprojecting lug t on the releasing-plate D, all clearly shown inFigs. 3 and 4.. The releasing-plate D is guided in its movement bysuitable guidepins, as, sliding in slots 8 8. (Shown in Fig. l.) Thesheet of tin is inserted between the plates or clamps A and E whileopen, as shown in Fig. 3, and placed in contact with theupwardlyprojecting stops or pins j j j located on the sides 9 and h, andattached to the lower plate, E. (Clearly shown in Fig. 1.) The sheet oftin having been inserted and placed as just described, the nextoperation is to lower the plate or clamp A onto plate or clamp E throughthe movement of the lever B in the direction of the arrow, as shown inFig. 4. During the movement of the lever B, as just described, thereleasing-plate D is moved in a diagonal direction toward the edges gandh of the plate E, thus forming two beveled edges,over which the tin isfolded or bent, the cam G pressing the plates or clamps A and D firmlyagainst the sheet of tin, all clearly shown in Fig. 4. The sheet of tinbeing now placed in position, the next operation is to fold or bend theedges, as shown in Figs. 6 and 7, two edges being folded over from aboveby the swinging of the two folders or wings G and H, and two edgesfolded or bent under by the swinging of the folders or wings I and J. Aswinging motion is imparted to the folders or wings G and I by therotation of the shaft is, to which are rigidly attached arms Z and Z,motion being imparted to the arms at and n, which are rigidly attachedto the folders or wings G and I, by means of the connections m and m.

The mechanism used to swing the folders or wings H and J is an exactcounterpart of that just described for swinging folders G and I, motionbeing imparted by means of the mitergears p and 1), (shown in Figs. 1and 2,) the supports 1" and r for the bearings of the folders or wingsbeing rigidly attached to each end of 5 the machine, as shown in Figs. 1and 2.

The support r being rigidly attached to the lower plate, E, and thesupport 0" being rigidly attached to upper plate, A, as the upper plate,A, is raised or separated from the lower plate, E, perfect alignment issecured for the bearings q q and q g by means of the universal bearingshown in detail in Fig. 5, which is a longitudinal section taken on anyof the ISO bearings q q or q q, clearly showing by the dotted lines themovement allowed for the swinging of the folders or wings J and H in alongitudinal direction.

We are aware that prior to our invention tin-folding machines have beenmade; but

What we claim as our invention, and desire to secure by Letters Patent,is 1. In a four-edge-tin-folding machine, the beveled-edge plates A andE, in combination with the releasing-plate D, operated by the cam C,pivoted to the arm F, and having the arm 6, with the lifting-pin f, theslotted connection b, and the connection 0 to the plate D, all as shownand described,

2. In a four-edge-tin-f01ding machine, the

releasing-plate D, operated as described, and

for the purpose set forth.

3. In a four-edge-tin-folding machine, the combination of the plate A,the plate E, the supports r and 1", respectively attached to saidplates, the yielding bearings qq q q, carried by said supports, and thefolders or wings J and H, journaled in said bearings, so that thefolders or wings are allowed to swing in a longitudinal direction as theplate A is raised or lowered, all substantially as described, and forthe purpose set forth.

JAMES WV. EAGER. HENRY E AGER.

Witnesses:

J. H. WATLING, J AS. W. Dow;

